Home / 877,617.04-1,211,240.82-515,240.80

Finding the Fourth Proportional to 877,617.04, 1,211,240.82 and 515,240.80

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Solution

The fourth proportional to 877,617.04, 1,211,240.82 and 515,240.80 is: 711,108.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,617.04 : 1,211,240.82 = 515,240.80 : x
  2. Step 2: Convert to fraction form
    877,617.04/1,211,240.82 = 515,240.80/x
  3. Step 3: Cross multiply
    877,617.04x = 1,211,240.82 × 515,240.80
  4. Step 4: Simplify right side
    877,617.04x = 624,080,689,089.46
  5. Step 5: Solve for x
    x = 624,080,689,089.46/877,617.04
  6. Step 6: Final answer
    x = 711,108.22

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.